According to laws such as „Gesetz für die Erhaltung, Modernisierung und den Aufbau der Kraft-Wärme-Kopplung (KWKG)“ (2002) and „Novelle KWK-Gesetz“ (2009) the federal government plans to Increase the proportion of combined heat and power (CHP) plants in total German gross power-generation from currently approx. 15% to 25% in 2020. In order to achieve this goal, innovations and improvements of this technology are necessary. This resulted in the consortium's idea of operating a CHP plant with a gas turbine instead of conventional combustion engines. One advantage of operating CHP systems with gas turbines is the lower power-to-weight ratio compared to conventional combustion engines. In addition, a gas turbine can be operated flexibly with different fuels. However, the purely electrical efficiency is only in a range of around 25%. Due to this background the focus of the project is to increase the efficiency of gas turbine.
A significant improvement of efficiency is not possible with metallic materials. In contrast, components made from high-performance ceramics can withstand significantly higher temperatures. Therefore, the goal of the project is to develop a rotor and stator made of monolithic high-performance ceramics and their successful use in micro gas turbines (MGT).
This project is funded by BMWi.
Project duration: 04/2020 – 03/2023